Gurnee is a village in Lake County, Illinois, United States. Its population was 31,295 as of the 2010 census.
Early settlers in the Gurnee area came by foot horseback and by "Prairie Schooners" drawn by oxen or via the Erie Canal and the Great Lakes. They came from the town of Warren, New York.The hamlet was originally called "Wentworth", after Congressman "Long John" Wentworth, who also served as the Republican Mayor of Chicago between 1857-1863.Thereafter, Walter S. Gurnee, the 14th Mayor of Chicago and one of the directors of the railroad, agreed to develop a station in Wentworth, which was called "Gurnee Station" in honor of Mr. Gurnee. Over time, Gurnee Station became known simply as "Gurnee" and was incorporated as such.